Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
130043lightly pollutedexcellent111excellent
120044lightly pollutedexcellent101excellent
110041lightly pollutedexcellent111excellent
100047lightly pollutedexcellent111excellent
090056lightly pollutedgood141excellent
080065moderately pollutedgood151excellent
070065moderately pollutedgood161excellent
060070moderately pollutedgood161excellent
050074moderately pollutedgood161excellent
040076moderately pollutedgood171excellent
030074moderately pollutedgood181excellent
020073moderately pollutedgood181excellent
010069moderately pollutedgood161excellent
000066moderately pollutedgood161excellent
230062moderately pollutedgood151excellent
220060lightly pollutedgood141excellent
210055lightly pollutedexcellent121excellent
200049lightly pollutedexcellent111excellent
190045lightly pollutedexcellent101excellent
180044lightly pollutedexcellent91excellent
170046lightly pollutedexcellent111excellent
160054lightly pollutedgood131excellent
150047lightly pollutedexcellent111excellent
140047lightly pollutedexcellent121excellent